Odontoglossum radiatum is an orchid species identified by Rchb.f. in 1865. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Oncidium luteopurpureum.
ORIGIN: Found in Andean Colombia at elevations of 2000 to 3000 meters in wet, cold cloud forests.
DESCRIPTION: Large sized, cold growing epiphyte with robust, oval, compressed pseudobulbs enveloped basally by 2 to 3 basal leaf bearing sheaths and carrying 2 apical, rather rigid, ensiform, acute to acuminate leaves that blooms in the spring and summer on an erect to lateral, many flowered, to 3 1/2' [105 cm] long, racemose inflorescence arising from the leaf sheaths of a mature pseudobulb and carrying up to 12, large, waxy, faintly fragrant, highly color-variable flowers.
FLOWER SIZE: 3 to 4 inches [7.5 to 10 cm]
-- information provided by Jay Pfahl, author of the
Internet Orchid Species Encyclopedia (IOSPE).
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